Activists burn tyres at barricades close to Independence Square, the epicenter of the country's current unrest, in Kiev, Ukraine, Thursday, Feb. 20, 2014. The heavy black smoke rising from burning tyres obscures the aim of police snipers. Fierce clashes between police and protesters in Ukraine's capital have shattered the brief truce Thursday and an Associated Press reporter has seen dozens bodies laid out on the edge of the protest encampment. (Efrem Lukatsky/AP)

Activists burn tyres at barricades close to Independence Square, the epicenter of the country's current unrest, in Kiev, Ukraine, Thursday, Feb. 20, 2014. The heavy black smoke rising from burning tyres obscures the aim of police snipers. Fierce clashes between police and protesters in Ukraine's capital have shattered the brief truce Thursday and an Associated Press reporter has seen dozens bodies laid out on the edge of the protest encampment.(Efrem Lukatsky/AP)